package minidb.querycondition;
import minidb.parse.exps.*;
import minidb.parse.*;

public class Tese_predicator
{

	public static void main(String[] args)
	{
		OperandInt i1=new OperandInt(20);
		OperandInt i2=new OperandInt(10);
		OperandString s1=new OperandString("wangurey");
		OperandString s2=new OperandString("wangurey");
		OperandNull n1=new OperandNull();
		OperandNull n2=new OperandNull();
		
		Boolean r;
		r=Predicator.DoPredicate(new Predicate(sym.EQ, n1, n2));
		r=Predicator.DoPredicate(new Predicate(sym.GT, i1, s2));
		r=Predicator.DoPredicate(new Predicate(sym.IS, i1, n2));
	}

}
